Finding the Fourth Proportional to 2,269.68, 3,131.82 and 1,274.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,269.68 : 3,131.82 = 1,274.77 : x
2. Step 2: Convert to fraction form
   2,269.68/3,131.82 = 1,274.77/x
3. Step 3: Cross multiply
   2,269.68x = 3,131.82 × 1,274.77
4. Step 4: Simplify right side
   2,269.68x = 3,992,348.22
5. Step 5: Solve for x
   x = 3,992,348.22/2,269.68
6. Step 6: Final answer
   x = 1,758.99